http://ift.tt/hZ0OVi
Molecular Psychiatry - Genetic contributions to variation in general cognitive function: a meta-analysis of genome-wide association studies in the CHARGE consortium
General cognitive function is substantially heritable across the human life course from adolescence to old age. We investigated the genetic contribution to variation in this important, health- and well-being-related trait in middle-aged and older adults. We conducted a meta-analysis of genome-wide association studies of 31 cohorts (N=53 949) in which the participants had undertaken multiple, diverse cognitive tests. A general cognitive function phenotype was tested for, and created in each cohort by principal component analysis. We report 13 genome-wide significant single-nucleotide polymorphism (SNP) associations in three genomic regions, 6q16.1, 14q12 and 19q13.32.
The proportion of phenotypic variation accounted for by all genotyped common SNPs was 29% (s.e.=5%) and 28% (s.e.=7%), respectively. Using polygenic prediction analysis, ~1.2% of the variance in general cognitive function was predicted in the Generation Scotland cohort (N=5487; P=1.5 × 10−17). In hypothesis-driven tests, there was significant association between general cognitive function and four genes previously associated with Alzheimer’s disease: TOMM40, APOE, ABCG1 and MEF2C.
Stephen Hsu posted on the main genetic findings on intelligence. Stephen Hsu has written extensively on the genetic basis on intelligence and the near future of embryo selection. Stephen advises BGI the main genomics company of China.
There was a review of five years of genome-wide association studies in 2011.
Read more »
Reposted via Next Big Future
Molecular Psychiatry - Genetic contributions to variation in general cognitive function: a meta-analysis of genome-wide association studies in the CHARGE consortium
General cognitive function is substantially heritable across the human life course from adolescence to old age. We investigated the genetic contribution to variation in this important, health- and well-being-related trait in middle-aged and older adults. We conducted a meta-analysis of genome-wide association studies of 31 cohorts (N=53 949) in which the participants had undertaken multiple, diverse cognitive tests. A general cognitive function phenotype was tested for, and created in each cohort by principal component analysis. We report 13 genome-wide significant single-nucleotide polymorphism (SNP) associations in three genomic regions, 6q16.1, 14q12 and 19q13.32.
The proportion of phenotypic variation accounted for by all genotyped common SNPs was 29% (s.e.=5%) and 28% (s.e.=7%), respectively. Using polygenic prediction analysis, ~1.2% of the variance in general cognitive function was predicted in the Generation Scotland cohort (N=5487; P=1.5 × 10−17). In hypothesis-driven tests, there was significant association between general cognitive function and four genes previously associated with Alzheimer’s disease: TOMM40, APOE, ABCG1 and MEF2C.
Stephen Hsu posted on the main genetic findings on intelligence. Stephen Hsu has written extensively on the genetic basis on intelligence and the near future of embryo selection. Stephen advises BGI the main genomics company of China.
There was a review of five years of genome-wide association studies in 2011.
Read more »
Reposted via Next Big Future
No comments:
Post a Comment